Linux emulab-ops,XEN411-64-STD Ubuntu 18.04 LTS 64 bit ndz 1 543a48f4d5d1d4e073e3c27a77633dd96de65918 https://www.emulab.net/spewimage.php?imageid=24543775-7e30-11e8-b228-90e2ba22fee4&access_key=ea8d13529612b81847b7a8e10ae39c97 UBUNTU18-64-STD 1 3 NORMALv2 ping,ssh,ipod,isup,linktest,linkdelays,vlans,loc-bstore,rem-bstore /usr/testbed/images/UBUNTU18-64-STD/UBUNTU18-64-STD.ndz:29 120 0 18.04